package cc.inik.po;

public class Chrome {
    public static void main(String[] lhw){
        int days =46;
        int week = days/7;
        int other = days%7;
        System.out.println(week+"周"+other+"天");
        double Pi = 3.14;
        double  radius = 1.5;
        double s = Pi*radius*radius;
        System.out.printf("圆的面积为：%.2f",s);
    }
}